Machines

What kind of simple machine would work best to hold something to the wall?

• screw

• lever

• gear

• inclined plane

How do complex machines help people?

• help do work that is difficult or hard

• help do work that is repetitive or boring

• help do dangerous work

• all of the above

to split things apart ex. knife, axe, sissors

• pulley

• wheel and axle

• wedge

• gear

inclined plane ex. ramp, door stop

• move heavy things

• split things apart

• reduce force needed to move something

• raise and lower heavy objects over a longer distance

Tags

NGSS.MS-ETS1-4

NGSS.MS-PS2-1

This simple machine is a ....

• ... pulley

• ... inclined plane

• ... lever

A machine is any object that we use to perform a task...

• ... with less effort or more speed.

• ... with more speed.

• ... in a natural way.

• ... more effort.

Tags

NGSS.MS-PS2-2

For a machine to work, you need to use a force.

• True

• False

Tags

NGSS.3-PS2-1

Machines help us to____________ weights.

• Lift.

• Move.

• Do domestic

Tags

NGSS.MS-ETS1-1

NGSS.MS-PS2-4

Machines help us to move from one place to another, to do domestic tasks, to communicate, to play and...

• .... to heat our houses.

• ... to walk.

• ... to wash our hands.

Tags

NGSS.4-PS3-2

NGSS.4-PS3-4

This machine needs...

• Electricity

• Fuel

• Physical strength

Tags

NGSS.MS-PS3-3